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| author |   Joe Lawrence <joe.lawrence@redhat.com> | 2018-03-19 14:35:54 -0400 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2018-03-20 09:30:09 +0100 |
| commit | a8c024cd9b9683d25ae1f459525dd2c6bec75e79 (patch) | |
| tree | c8ef3a47962e7381c066a86ea4ce816d9a746b54 /kernel | |
| parent | Linux 4.16-rc6 (diff) | |
| download | linux-dev-a8c024cd9b9683d25ae1f459525dd2c6bec75e79.tar.xz linux-dev-a8c024cd9b9683d25ae1f459525dd2c6bec75e79.zip | |
sched/debug: Fix per-task line continuation for console output
When the SEQ_printf() macro prints to the console, it runs a simple
printk() without KERN_CONT "continued" line printing. The result of
this is oddly wrapped task info, for example:
% echo t > /proc/sysrq-trigger
% dmesg
...
runnable tasks:
...
[ 29.608611] I
[ 29.608613] rcu_sched 8 3252.013846 4087 120
[ 29.608614] 0.000000 29.090111 0.000000
[ 29.608615] 0 0
[ 29.608616] /
Modify SEQ_printf to use pr_cont() for expected one-line results:
% echo t > /proc/sysrq-trigger
% dmesg
...
runnable tasks:
...
[ 106.716329] S cpuhp/5 37 2006.315026 14 120 0.000000 0.496893 0.000000 0 0 /
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1521484555-8620-2-git-send-email-joe.lawrence@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/debug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 1ca0130ed4f9..50026aa2d81e 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -32,7 +32,7 @@ static DEFINE_SPINLOCK(sched_debug_lock); if (m) \ seq_printf(m, x); \ else \ - printk(x); \ + pr_cont(x); \ } while (0) /* |